Pyrus alpina (Mill.) DuRoi Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rosaceae genus Chamaemespilus species Chamaemespilus alpina Name Homonyms Pyrus alpina Willd. Pyrus alpina F.Schmidt Pyrus alpina (Mill.) Du Roi Pyrus alpina (Mill.) DuRoi